}
uint16_t addr = (bline[1] << 8) | bline[2];
if (base == ~0) {
- base = addr; // stadt address
+ base = addr; // start address
}
if (addr != base + size) {
fprintf(stderr, "%s: %s, offset out of bounds %04x expected %04x\n", __FUNCTION__, fname, addr, base+size);
}
-int read_ihex_chunks(const char * fname, struct ihex_chunk_t * chunks, int max_chunks)
+int
+read_ihex_chunks(
+ const char * fname,
+ ihex_chunk_p * chunks )
{
- if (!fname || !chunks || !max_chunks)
+ if (!fname || !chunks)
return -1;
- memset((void*)chunks, 0, sizeof(chunks[0]) * max_chunks);
FILE * f = fopen(fname, "r");
if (!f) {
perror(fname);
return -1;
}
uint32_t segment = 0; // segment address
- int chunk = 0;
- chunks[0].baseaddr = ~0;
+ int chunk = 0, max_chunks = 0;
+ *chunks = NULL;
while (!feof(f)) {
char line[128];
uint32_t addr = 0;
switch (bline[3]) {
case 0: // normal data
- addr = segment + (bline[1] << 8) | bline[2];
+ addr = segment | (bline[1] << 8) | bline[2];
break;
case 1: // end of file
continue;
fprintf(stderr, "%s: %s, unsupported check type %02x\n", __FUNCTION__, fname, bline[3]);
continue;
}
- if (addr != chunks[chunk].baseaddr + chunks[chunk].size) {
- if (chunks[chunk].size)
+ if (chunk < max_chunks && addr != ((*chunks)[chunk].baseaddr + (*chunks)[chunk].size)) {
+ if ((*chunks)[chunk].size)
chunk++;
- chunks[chunk].baseaddr = addr;
}
- chunks[chunk].data = realloc(chunks[chunk].data, chunks[chunk].size + bline[0]);
- memcpy(chunks[chunk].data + chunks[chunk].size, bline + 4, bline[0]);
- chunks[chunk].size += bline[0];
+ if (chunk >= max_chunks) {
+ max_chunks++;
+ *chunks = realloc(*chunks, max_chunks * sizeof(ihex_chunk_t));
+ memset(*chunks + chunk, 0, (max_chunks - chunk) * sizeof(ihex_chunk_t));
+ (*chunks)[chunk].baseaddr = addr;
+ }
+ (*chunks)[chunk].data = realloc((*chunks)[chunk].data, (*chunks)[chunk].size + bline[0]);
+ memcpy((*chunks)[chunk].data + (*chunks)[chunk].size, bline + 4, bline[0]);
+ (*chunks)[chunk].size += bline[0];
}
- if (chunks[chunk].size)
- chunk++;
fclose(f);
- return chunk;
+ return max_chunks;
}
#ifdef IHEX_TEST
-// gcc -std=gnu99 -Isimavr/sim simavr/sim/sim_hex.c -o sim_hex -DIHEX_TEST
-int main(int argc, char * argv[])
+// gcc -std=gnu99 -Isimavr/sim simavr/sim/sim_hex.c -o sim_hex -DIHEX_TEST -Dtest_main=main
+int test_main(int argc, char * argv[])
{
struct ihex_chunk_t chunk[4];